Round|Natural|GIA

0.50ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 5496515083

Certificate GIA 5496515083

Diamond specifications and retailer prices

From $331 USD
As of November 6, 2026
Save $719 USD (68%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,745 USD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct natural round sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5496515083. Listed at 18 retailers as of November 4, 2026, with a 217% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.50
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5496515083
Dimensions5.08 × 5.04 × 3.14 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.08 mm5.04 mm0.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5496515083
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,745 USD|Low: $331 USD|High: $1,745 USD|Avg: $777 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2$331 USD
Retailer 9$420 USD
Retailer 10$431 USD
Retailer 4$558 USD
Retailer 5$584 USD
Retailer 3$651 USD
Retailer 6$1,050 USD
Retailer 8$1,212 USD
Retailer 7$1,265 USD
NZ Jewellers$1,745 USD

41 data points across 10 retailers

18 retailers$331 USD to $1,050 USD

A
Cheapest Retailer
-
$331 USD
Retailer 2
-
$384 USD
View
Price last confirmed 63 days ago
A
Retailer 3
-
$420 USD
View
Final sale: no returns
A
Retailer 4
-
$431 USD
View
Retailer 5
-
$455 USD
View
Price last confirmed 44 days ago
Retailer 6
-
$475 USD
View
Price last confirmed 16 days ago
Retailer 7
-
$490 USD
View
Price last confirmed 21 days ago
Retailer 8
-
$525 USD
View
Price last confirmed 68 days ago
Retailer 9
-
$525 USD
View
Price last confirmed 45 days ago
B+
Retailer 10
-
$558 USD
View
B+
Retailer 11
-
$584 USD
View
B+
Retailer 12
-
$586 USD
View
B+
Retailer 13
-
$651 USD
View
B
Retailer 14
-
$1,050 USD
View
Retailer 15
-
$1,212 USD
View
Price last confirmed 16 days ago
Retailer 16
-
$1,265 USD
View
Price last confirmed 15 days ago
Retailer 17
-
$1,745 USD
View
Price last confirmed 43 days ago
Most Expensive
NZ Jewellers
5f09179c-a80b-4874-b199-7b70a7093f10 · Oct 20
$1,745 USD
View
Price last confirmed 17 days ago
17 more retailers have this diamond
Prices start from $331 USDSave up to $719 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.50ct Round
$331 USD